Just for fun I'm trying to draw on 3D transformed canvases. I wrote some code and it kind of works    const m4 = twgl.m4;  [...document.querySelectorAll('canvas')].forEach((canvas) => {   const ctx = canvas.getContext('2d');...
I'm creating a simple asteroids-like game in CSS and JS using the DOM over canvas for...experimentation purposes.   My code is pretty small in this example to make it easy to see what's going on below. The ultimate goal: Let arrow keys smooth...
Let's say I have a div that had translateX and translateY values added dynamically.  <div class="object child0"       style="-webkit-transform: translateX(873.5px) translateY(256px);              width: 50px; height: 50px;">...
Live example: https://jsfiddle.net/b8vLg0ny/  It's possible to use the CSS scale and translate functions to zoom into element.  Take this example, of 4 boxes in a 2x2 grid.  HTML:  <div id="container">   <div id="zoom-contain...
I need to obtain actual height of several different elements (for the sake of precise custom tooltip positioning), and some of these elements (not all) are rotated. $(elem).outerHeight() returns the original height, instead of the actual displayed he...
I have obtained a CSS transform matrix of an element by using getComputedStyle() method as follows.  var style = window.getComputedStyle(elem1, null); var trans = style.transform;      trans = matrix(1, 0, 0, 1, 1320, 290)   Is there a way to back ca...
I'm using this script that claims to implement matrix3d operation as described in the spec, however the script is missing matrix perspective operations, so I "cooked" something I'm not sure is either accurate or correct.  // the persp...
How can I flip multiple div's when I clicked on menus using CSS3?   This code is working for only the last two divs :  HTML Code  <ul class="nav">    <li><a href="#home">home</a></li>    <li><...
When CSS elements are transformed out of their original location the transform-origin doesn't move with them; making all subsequent transforms and rotations still originate from it's original transform-origin ( example below ).  There is one...
I would like to change the transform origin to the center point of the pinch gesture.  This working code (safariDevSample) applies scale and rotation without changing the transform-origin:  window.angle = 0; //global to store data for later reset ......

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